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Noel Camille E CE Department of Radiation Oncology, Washington University School of Medicine, St. Louis, - - 2014
The limited soft tissue visualization provided by computed tomography, the standard imaging modality for radiotherapy treatment planning and daily localization, has motivated studies on the use of magnetic resonance imaging (MRI) for better characterization of treatment sites, such as the prostate and head and neck. However, no studies have been ...
Mittone A A Department of Physics, Ludwig Maximilians University, Garching D-85748, Germany. Department of Clinical Radiology, Ludwig Maximilians University, Munich D-81377, - - 2014
Recent developments have shown that high resolution phase contrast x-ray computed tomography (CT) of the breast can be performed at clinically compatible doses. Results have yet been obtained in vitro on full breasts, and the clinical translation of the technique seems more and more possible. This work presents a method ...
Liu Zhaofei Z Medical Isotopes Research Center, Peking University, Beijing, - - 2014
Integrin αvβ6, a member of the integrin family, is specifically expressed in many malignancies but not in normal organs. Overexpression of integrin αvβ6 is usually correlated with malignant potential and poor prognosis. In this study, we describe the synthesis and evaluation of a (99m)Tc-labeled integrin αvβ6-targeting peptide as a SPECT ...
Doss Mohan M Diagnostic Imaging, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA, 19111-2497, - - 2014
[(18) F]VM4-037 has been developed as a positron emission tomography (PET) imaging marker to detect carbonic anhydrase IX (CA-IX) overexpression and is being investigated for use as a surrogate marker for tissue hypoxia. The purpose of this study was to determine the biodistribution and estimate the radiation dose from [(18) F]VM4-037 using ...
Ellison-Wright Ian - - 2014
Gray and white matter brain changes have been found in schizophrenia but the anatomical organizing process underlying these changes remains unknown. We aimed to identify gray and white matter volumetric changes in a group of patients with schizophrenia and to quantify the distribution of white matter tract changes using a ...
Lim Kelvin K KK Department of Radiology, Austin Hospital, Austin Health (Department affiliated with University of Melbourne, Melbourne Medical School), 145 Studley Road, P.O. Box 5555, Heidelberg, VIC, 3084, Australia, - - 2014
The purpose of this article is to illustrate clinical applications of 3D T2-weighted MRI in pelvic imaging. We review technical considerations of 3D T2-weighted MRI with clinical examples. 3D T2-weighted MRI has been increasingly utilized for pelvic applications, including imaging of rectal cancer, prostate cancer, anorectal fistulas and the female ...
Liebmann M M Medical Radiation Physics, Carl von Ossietzky University, - - 2014
Purpose: Although the use of thyroid shields for patients for head CT examinations is reasonable and even required by German regulations, so far available shields are often not used due to difficult applicability. New shields that are easier to use and therefore may gain wider acceptance and more frequent use ...
Dai Zhengjia Z State Key Laboratory of Cognitive Neuroscience and Learning; IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, 100875, - - 2014
Alzheimer's disease (AD) is the most common type of dementia, comprising an estimated 60-80% of all dementia cases. It is clinically characterized by impairments of memory and other cognitive functions. Previous studies have demonstrated that these impairments are associated with abnormal structural and functional connections among brain regions, leading to ...
Pandey Anoop Kumar AK From the *Department of Radiology & Imaging, Fortis Memorial Research Institute, Gurgaon, Haryana, India; †SRL Diagnostics, Fortis Memorial Research Institute, Gurgaon, Haryana, India; ‡Philips Electronics India Ltd, Gurgaon, Haryana, India; and §Department of Neurosurgery, Fortis Memorial Research Institute, Gurgaon, Haryana, - - 2014
The aim of this study was to evaluate the role of whole-body magnetic resonance imaging (WB-MRI) in imaging of extrapulmonary tuberculosis. Eighteen patients with single-site extrapulmonary tuberculosis were evaluated with contrast-enhanced dedicated MRI of the clinically symptomatic site followed by WB-MRI using contrast-enhanced 3-dimensional (3D) modified DIXON technique (m-DIXON) and ...
Jung Rayamajhi Sampanna RS From the Departments of *Nuclear Medicine & PET, and †Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, - - 2014
Sarcoidosis is a multisystemic disease, which may affect almost any organ including the eyes. Recently, F-FDG PET/CT has proved to be a very useful molecular imaging method allowing to obtain a complete morphofunctional cartography of active inflammatory sites and to assess treatment response in patients with sarcoidosis. We report 2 ...
Peng Fangyu F Department of Radiology and Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, - - 2014
Copper is an essential nutrient for the physiology of live organisms, but excessive copper can be harmful. Copper radioisotopes are used for measurement of copper fluxes in live organisms using a radioactivity assay of body fluids or whole-body positron emission tomography (PET). Hybrid positron emission tomography-computed tomography (PET/CT) is a ...
Seidenbusch Michael C MC Paediatric Radiology, Institute for Clinical Radiology, Dr. von Hauner's Children's Hospital, Ludwig-Maximilians-University Munich, Lindwurmstr. 4, 80337 Munich, Germany. Electronic address: - - 2014
Estimations of organ doses DT received during computed tomographic examinations are usually performed by applying conversion factors to basic dose indicators like the computed tomography dose index (CTDI) or the dose-length-product (DLP). In addition to the existing conversion factors for beam apertures of 5 mm or 10 mm, we present ...
Hostettler Katrin E KE University Hospital Basel, - - 2014
To the Editor:The course of sarcoidosis is heterogeneous, and the assessment of pulmonary and extrathoracic organ involvement is important for clinical treatment decisions (1). Whole-body imaging techniques have been evaluated to assess total disease activity (2, 3). (18)F-fluoro-2-deoxy-d-glucose positron emission tomography ((18)FDG-PET) and (18)FDG-PET/computed tomography (CT) allow a complete picture ...
Martínez Fabio F CIM&Lab, Universidad Nacional de Colombia, Bogota, Colombia. INSERM, U1099, Rennes, F-35000, - - 2014
Accurate segmentation of the prostate and organs at risk in computed tomography (CT) images is a crucial step for radiotherapy planning. Manual segmentation, as performed nowadays, is a time consuming process and prone to errors due to the a high intra- and inter-expert variability. This paper introduces a new automatic ...
Trattner Sigal S Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New - - 2014
The increase in radiation exposure due to CT scans has been of growing concern in recent years. CT scanners differ in their capabilities, and various indications require unique protocols, but there remains room for standardization and optimization. In this paper, the authors summarize approaches to reduce dose, as discussed in ...
Liu Feng F Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin - - 2014
To quantify interfractional anatomic variations and limitations of the current practice of image-guided radiation therapy (IGRT) for prostate-bed patients and to study dosimetric benefits of an online adaptive replanning scheme that addresses the interfractional variations. Contours for the targets and organs at risk (OARs) from daily diagnostic-quality CTs acquired with ...
Li Hua H Department of Radiation Oncology, Washington University, St. Louis, Missouri - - 2014
In radiation therapy, x-ray computed tomography (CT) simulation protocol specifications should be driven by the treatment planning requirements in lieu of duplicating diagnostic CT screening protocols. The purpose of this study was to develop a general strategy that allows for automatically, prospectively, and objectively determining the optimal patient-specific CT simulation ...
Chan Chung - - 2014
Positron emission tomography (PET) images usually suffer from poor signal-to-noise ratio (SNR) due to the high level of noise and low spatial resolution, which adversely affect its performance for lesion detection and quantification. The complementary information present in high-resolution anatomical images from multi-modality imaging systems could potentially be used to ...
Daocai Wang W From the *Department of Radiology, Shandong Medical Imaging Institute of Shandong University, and †Department of Radiology, Qilu Hospital of Shandong University, Jinan, - - 2014
The purpose of the study was to obtain reference values for the sizes of the semicircular canals (SCCs) on multidetector computed tomographic (CT) images in different age groups. Computed tomographic images of the temporal bone of 210 patients, a total of 420 ears without inner ear pathology, have been evaluated. ...
Cosottini Mirco M From the IMAGO7 Foundation, Pisa, Italy (M. Cosottini, M. Costagli); Department of Translational Research and New Surgical and Medical Technologies (M. Cosottini) and Neurology Unit, Department of Clinical and Experimental Medicine (D.F., R.C., U.B.), University of Pisa, Pisa, Italy; Neuroradiology Unit, Department of Diagnostic and Interventional Radiology, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy (I.P.); and Stella Maris Scientific Institute, Pisa, Italy (L.B., - - 2014
Purpose To evaluate the anatomy of the substantia nigra (SN) in healthy subjects by performing 7-T magnetic resonance (MR) imaging of the SN, and to prospectively define the accuracy of 7-T MR imaging in distinguishing Parkinson disease (PD) patients from healthy subjects on an individual basis. Materials and Methods The ...
Kolinko Isabel I Ludwig-Maximilians-Universität München, Department of Biology I, Großhaderner Straße 2-4, 82152 Martinsried, - - 2014
The synthetic production of monodisperse single magnetic domain nanoparticles at ambient temperature is challenging. In nature, magnetosomes-membrane-bound magnetic nanocrystals with unprecedented magnetic properties-can be biomineralized by magnetotactic bacteria. However, these microbes are difficult to handle. Expression of the underlying biosynthetic pathway from these fastidious microorganisms within other organisms could therefore ...
Takahashi Hiroyuki H Division of Rheumatic Diseases, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655 - - 2014
This study aimed to evaluate the utility of imaging techniques, including 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT), in immunoglobulin (IgG)4-related disease (IgG4-RD). We reviewed eight IgG4-RD patients who were referred to our hospital between August 2006 and April 2012. All cases underwent FDG-PET/CT and brain magnetic resonance imaging (MRI) and ...
Fuertes Jordi J From the *Departments of Nuclear Medicine, †Radiology, and ‡Internal Medicine, Hospital Universitari Sant Joan de Reus, Tarragona, - - 2014
We present a woman with a history of Gaucher disease and secondary portal hypertension. She went to hospital for treatment of resistant fever without apparent cause. A conventional study of fever of unknown origin did not show any pathology. For this reason, she was referred to our department for a ...
Stam Rianne R Centre for Sustainability, Environment and Health, National Institute for Public Health and the Environment, PO Box 1, 3720 BA Bilthoven, The - - 2014
Some of the strongest electromagnetic fields (EMF) are found in the workplace. A European Directive sets limits to workers' exposure to EMF. This review summarizes its origin and contents and compares magnetic field exposure levels in high-risk workplaces with the limits set in the revised Directive. Pubmed, Scopus, grey literature ...
Kehrl Thompson T Department of Emergency Medicine, York Hospital, York, - - 2014
Necrotizing fasciitis (NF) is a rare but deadly disease. Diagnosis of necrotizing soft tissue infections can be challenging for a variety of reasons. Point-of-care (POC) ultrasound (US) has been described as a diagnostic tool to help the acute care clinician make the early diagnosis that is imperative to optimize outcomes. ...
Rikken Roger S M RS High Field Magnet Laboratory (HFML), Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands. - - 2014
In this review we will focus on how magnetic fields can be used to manipulate the motion of various micro- and nanostructures in solution. We will distinguish between ferromagnetic, paramagnetic and diamagnetic materials. Furthermore, the use of various kinds of magnetic fields, such as homogeneous, inhomogeneous and rotating magnetic fields, ...
Homann Georg G Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University Tüingen, Tüingen, - - 2014
Objective: Detection of abdominal injury is a very important component in trauma management, so a precise assessment of liver and spleen injuries including their severity degree is necessary. There is a good case to believe that in emergency situations the radiologists?performance may profit from a systematic approach using established scoring ...
Almohiy Hussain H Hussain Almohiy, Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61431, Saudi - - 2014
Computed tomography (CT) has earned a well-deserved role in diagnostic radiology, producing cross-sectional and three-dimensional images which permit enhanced diagnosis of many pathogenic processes. The speed, versatility, accuracy, and non-invasiveness of this procedure have resulted in a rapid increase in its use. CT imaging, however, delivers a substantially higher radiation ...
Buchs Jean-Bernard JB 1 Research and Development Laboratory, Visceral and Transplantation Service, University Hospital Geneva, Geneva, Switzerland. 2 Research Unit of Surgery, Visceral and Transplantation Service, University Hospital Geneva, Geneva, Switzerland. 3 Department of Pathology, University Hospital Geneva, Geneva, Switzerland. 4 Service of Radiology, University of Geneva, Geneva, Switzerland. 5 Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. 6 Department of Radiology, University Hospital Geneva, Geneva, Switzerland. 7 Address correspondence to: Jean-Bernard Buchs, MD, Research and Development Laboratory, Visceral and Transplantation Service, University Hospital Geneva, Geneva, - - 2014
Magnetic resonance imaging (MRI) gadolinium-perfusion was applied in simulated Donation after Cardiac Death (DCD) in porcine kidneys to measure intrarenal perfusion. Adenosine triphosphate (ATP) resynthesis during oxygenated hypothermic perfusion was compared to evaluate the "ex vivo organ viability". Adenine nucleotide (AN) was measured by P nuclear magnetic resonance (NMR) spectroscopy. ...
Konstandin Simon S Computer Assisted Clinical Medicine, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany, - - 2014
In principle, all nuclei with nonzero spin can be employed for magnetic resonance imaging (MRI). Special scanner hardware and MR sequences are required to select the nucleus-specific frequency and to enable imaging with "sufficient" signal-to-noise ratio. This Special Issue starts with an overview of different nuclei that can be used ...
Qian Jing-Jing JJ Laboratory of Advanced Porous Materials, School of Chemistry and Chemical Engineering, Anhui University, Hefei, China. - - 2014
In this work, we present novel kinds of Fe3O4@Tb-BTC magnetic metal-organic framework (MOF) nanospheres which possess both magnetic characteristics and fluorescent properties using a layer by layer assembly technique. The structure and morphology of the as-prepared Fe3O4@Tb-BTC were systematically characterized and it was applied in detection of nitroaromatic explosives, such ...
Soize Sébastien S Department of radiology, hôpital Maison-Blanche, université de Champagne-Ardenne, CHU de Reims, 45, rue Cognacq-Jay, 51092 Reims, - - 2014
Developments in endovascular treatment have opened new promising prospects for treating acute ischemic stroke. In France, EVT is increasingly used, especially when intravenous thrombolysis is contraindicated or has failed. However, it has not been documented how neurointerventional centers are organized practically for the treatment of AIS. The present survey aims ...
Subhawong Ty K TK From the *Department of Radiology, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, FL; †The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins Hospital, Baltimore, MD; ‡Siemens Medical Solutions, Malvern, PA; §Siemens Healthcare, Erlangen, Germany; and ∥Department of Radiology, University of Texas Southwestern, Dallas, - - 2014
This study aimed to investigate whether patellofemoral T2 cartilage changes are associated with lateral patellofemoral friction syndrome (PFS), as indicated by an edema-like signal within the superolateral infrapatellar (Hoffa) fat pad. In this institutional review board-approved retrospective study of 510 consecutive patients, 49 patients with 50 knee magnetic resonance imaging ...
Debbaut Charlotte C Biofluid, Tissue and Solid Mechanics for Medical Applications, Institute Biomedical Technology, Department of Electronics and Information Systems, iMinds Future Health Department, Ghent University, Gent, - - 2014
Although a full understanding of the hepatic circulation is one of the keys to successfully perform liver surgery and to elucidate liver pathology, relatively little is known about the functional organization of the liver vasculature. Therefore, we materialized and visualized the human hepatic vasculature at different scales, and performed a ...
Onal S S Department of Industrial & Management Systems Engineering, University of South Florida, 4202 East Fowler Avenue, ENB 118, Tampa, FL, 33620, USA, - - 2014
The objective of this study was to assess the performance of a semiautomated pelvic floor measurement algorithmic model on dynamic magnetic resonance imaging (MRI) images compared with manual pelvic floor measurements for pelvic organ prolapse (POP) evaluation. We examined 15 MRIs along the midsagittal view. Five reference points used for ...
Omür Ozgür O Department of Nuclear Medicine, Ege University School of Medicine, İzmir, - - 2014
We aimed to evaluate the role of fluorine-18 fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) involving care-dose unenhanced CT to detect extranodal involvement in patients with non-Hodgkin and Hodgkin lymphoma. Lymphoma patients (35 Hodgkin lymphoma, 75 non-Hodgkin lymphoma) having had a diagnostic contrast-enhanced CT (CE-CT) within the last month who ...
Alves Vieira Mónica Alexandra MA Department of Radiology, Hospital José Joaquim Fernandes-Unidade Local de Saúde do Baixo Alentejo, Beja, - - 2014
Primary lymphomas of the female genital tract are extremely rare, and a definitive diagnosis requires correlation of the clinical, radiological, and pathological findings. Unlike nonlymphomatous malignant tumors, the treatment of lymphoma is typically nonsurgical, thus raising the possibility of lymphoma in the differential diagnosis of a pelvic mass, a radiologist ...
Pastor Catherine M CM Laboratoire de Physiopathologie Hepatique et Imagerie - - 2014
The expression and transport function of organic anion transporters are modified in liver diseases and therefore the vascular clearances of endogenous and exogenous organic anions that are taken up by these transporters were used to assess liver diseases in patients. More recently, liver imaging with hepatobiliary contrast agents, tracers, and ...
Hong Qingqi - - 2014
With the flooding datasets of medical Computed Tomography (CT) and Magnetic Resonance Imaging (MRI), implicit modeling techniques are increasingly applied to reconstruct the human organs, especially the vasculature. However, displaying implicitly represented geometric objects arises heavy computational burden. In this study, a Graphics Processing Unit (GPU) accelerating technique was developed ...
Abe Hiroyuki H Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, - - 2014
Hepatic intravascular large B-cell lymphoma (IVL) is a rare disease entity that involves invasion into various organs. Due to the aggressive behavior and poor prognosis of the disease and the difficulty in making an early diagnosis, some cases are diagnosed at autopsy. Early suspicion and the use of imaging studies ...
Paredes Jose L JL Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC and the University of Pittsburgh, Pittsburgh, Pennsylvania, United States of - - 2014
In experimental models of pancreatic growth and recovery, changes in pancreatic size are assessed by euthanizing a large cohort of animals at varying time points and measuring organ mass. However, to ascertain this information in clinical practice, patients with pancreatic disorders routinely undergo non-invasive cross-sectional imaging of the pancreas using ...
Hodneland Erlend E Department of Biomedicine, University of Bergen, Bergen, Norway. Electronic address: - - 2013
Dynamic MR image recordings (DCE-MRI) of moving organs using bolus injections create two different types of dynamics in the images: (i) spatial motion artifacts due to patient movements, breathing and physiological pulsations that we want to counteract and (ii) signal intensity changes during contrast agent wash-in and wash-out that we ...
Patrick P Stephen PS Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, United - - 2013
The ability to track cells and their patterns of gene expression in living organisms can increase our understanding of tissue development and disease. Gene reporters for bioluminescence, fluorescence, radionuclide, and magnetic resonance imaging (MRI) have been described but these suffer variously from limited depth penetration, spatial resolution, and sensitivity. We ...
Kumar Mohit - - 2013
Supramolecular organization of π-conjugated chromophores into well defined nanostructures has gained much attention due to their promising role as active components in organic electronics. Charge-transfer (CT) nanostructures, in which aromatic donor (D) and acceptor (A) molecules are alternately arranged, (mixed stack) have emerged recently as prospective candidates in this direction, ...
Callovini Giorgio Maria - - 2013
The aim of the study is to evaluate the efficacy of craniotomy and membranectomy as initial treatment of organized chronic subdural hematoma (OCSH). We retrospectively reviewed a series of 34 consecutive patients suffering from OCSH, diagnosed by magnetic resonance imaging (MRI) or contrast computer tomography (CCT) in order to establish ...
Watanabe Haruo H Department of Radiology, Gifu Central Hospital, 3-25 Kawabe, 501-1198, Gifu, Japan; Department of Radiology, Gifu University Hospital, Gifu, Japan. Electronic address: - - 2013
To assess the optimal scan delays and contrast injection durations for contrast-enhanced whole-body computed tomography (CT). One hundred forty-two patients were randomized into three groups: protocol A-scan delay of 65 s after starting contrast injection over 30 s; protocol B-105 and 70 s; and protocol C-145 and 110 s, respectively. ...
Koçyiğit Deveci Emel E Department of Nuclear Medicine, Hacettepe University, Ankara, - - 2013
Objective: The aim of this study was to assess the diagnostic efficiency of (99m)Tc-EDDA/HYNIC-Octreotate in comparison with (111)Inpentetrotide scintigraphy in the detection of neuroendocrine tumors. This study also evaluates the impact of SPECT-CT hybrid imaging on somatostatin receptor scintigraphy (SRS) interpretation and clinical management of these tumors. Methods: Fourteen patients ...
Addison Shea - - 2013
Although post-mortem magnetic resonance imaging (PMMR) was proposed as an alternative to conventional autopsy more than a decade ago, the lack of systematic validation has limited its clinical uptake. Minimally invasive autopsy (MIA) using post-mortem MR imaging together with ancillary investigations has now been shown to be as accurate as ...
Pace Leonardo L Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, Italy. Electronic address: - - 2013
To compare the performance of PET/MRI imaging using MR attenuation correction (MRAC) (DIXON-based 4-segment -map) in breast cancer patients with that of PET/CT using CT-based attenuation correction and to compare the quantification accuracy in lesions and in normal organ tissues. A total of 36 patients underwent a whole-body PET/CT scan ...
Her Jae-Hyuk - - 2013
Li[TCNE] (TCNE = tetracyanoethylene) magnetically orders as a weak ferromagnet (canted antiferromagnet) below 21.0 ± 0.1 K, as observed from the bifurcation of the field-cooled and zero-field-cooled magnetizations, as well as remnant magnetization. The structure, determined ab initio from synchrotron X-ray powder diffraction data, consists of a planar μ4-[TCNE](•-) bound ...
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